聚焦法非破坏性测试光纤和预制棒的折射率分布

应用科学学报 ›› 1985, Vol. 3 ›› Issue (1): 82-87.

聚焦法非破坏性测试光纤和预制棒的折射率分布

许国大, 张召南, 侯元庆

上海科学技术大学

收稿日期:1982-02-20 出版日期:1985-03-31 发布日期:1985-03-31

FOCUSING METHOD FOR NONDESTRUCTIVE MEASUREMENT OF OPTICAL FIBER AND PREFORM INDEX PROFILE

XU KUODA, ZHANG ZHAONAN, HOU YUANGQINQ

Shanghai University of Science and Technology

Received:1982-02-20 Online:1985-03-31 Published:1985-03-31

摘要/Abstract

摘要： 聚焦法是一种较为简单而通用的测试光纤和预制棒折射率分布的方法.参考Marcuse等工作^[1~3],组成本文的测试系统,具有一定特色.对多模、单模样品均进行了实测,取得了较满意的结果.

Abstract: The focusing method is a nondestructive one for obtaining the refractive-index profile of fibers and preforms of different sizes. An uniform incoherent collimated light beam is passed transversely through the fiber or preform immersed in an index matching oil and the light intensity distribution is directly detected by a CdS photo conductive detector, or recorded on an X-Y recorder with the aid of silicon vidicon camera and sampling line oscilloscope. The refractive-index profile is finally computed by means of a microcomputer.
This paper relates briefly the principle of the method and experimental details and also gives the quantitative results and conclusions.

许国大, 张召南, 侯元庆. 聚焦法非破坏性测试光纤和预制棒的折射率分布[J]. 应用科学学报, 1985, 3(1): 82-87.

XU KUODA, ZHANG ZHAONAN, HOU YUANGQINQ. FOCUSING METHOD FOR NONDESTRUCTIVE MEASUREMENT OF OPTICAL FIBER AND PREFORM INDEX PROFILE[J]. Journal of Applied Sciences, 1985, 3(1): 82-87.